renovate/docs/usage/modules/versioning.md

Versioning

Once Managers have extracted dependencies, and Datasources have located available versions, then Renovate makes use of "Versioning" schemes to perform sorting and filtering of results. This is necessary because different managers use different types of numbering/versioning, e.g. 1.0.0-beta.1 in npm and 1.0.0b1 in Python.

Configuring Versioning

There are times when you may need to manually configure/override the versioning value for a particular dependency. You generally won't have a need for this in ecosystems with strict versioning enforcement like npm, but you might often need it for ecosystems like Docker where versioning is barely a "convention". e.g.

{
  "packageRules": [
    {
      "datasources": ["docker"],
      "packageNames": ["python"],
      "versioning": "pep440"
    }
  ]
}

The above will override Renovate's default of docker versioning for the python Docker image and instead use pep440 versioning to evaluate versions.

Supported Versioning